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diff --git a/JavaScriptCore/kjs/JSVariableObject.cpp b/JavaScriptCore/kjs/JSVariableObject.cpp
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+++ b/JavaScriptCore/kjs/JSVariableObject.cpp
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+/*
+ * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "JSVariableObject.h"
+
+#include "PropertyNameArray.h"
+#include "property_map.h"
+
+namespace KJS {
+
+UString::Rep* IdentifierRepHashTraits::nullRepPtr = &UString::Rep::null; // Didn't want to make a whole source file for just this.
+
+void JSVariableObject::saveLocalStorage(SavedProperties& p) const
+{
+    ASSERT(d->symbolTable);
+    ASSERT(static_cast<size_t>(d->symbolTable->size()) == d->localStorage.size());
+
+    unsigned count = d->symbolTable->size();
+
+    p.properties.clear();
+    p.count = count;
+
+    if (!count)
+        return;
+
+    p.properties.set(new SavedProperty[count]);
+
+    SymbolTable::const_iterator end = d->symbolTable->end();
+    for (SymbolTable::const_iterator it = d->symbolTable->begin(); it != end; ++it) {
+        size_t i = it->second;
+        const LocalStorageEntry& entry = d->localStorage[i];
+        p.properties[i].init(it->first.get(), entry.value, entry.attributes);
+    }
+}
+
+void JSVariableObject::restoreLocalStorage(const SavedProperties& p)
+{
+    unsigned count = p.count;
+    d->symbolTable->clear();
+    d->localStorage.resize(count);
+    SavedProperty* property = p.properties.get();
+    for (size_t i = 0; i < count; ++i, ++property) {
+        ASSERT(!d->symbolTable->contains(property->name()));
+        LocalStorageEntry& entry = d->localStorage[i];
+        d->symbolTable->set(property->name(), i);
+        entry.value = property->value();
+        entry.attributes = property->attributes();
+    }
+}
+
+bool JSVariableObject::deleteProperty(ExecState* exec, const Identifier& propertyName)
+{
+    if (symbolTable().contains(propertyName.ustring().rep()))
+        return false;
+
+    return JSObject::deleteProperty(exec, propertyName);
+}
+
+void JSVariableObject::getPropertyNames(ExecState* exec, PropertyNameArray& propertyNames)
+{
+    SymbolTable::const_iterator::Keys end = symbolTable().end().keys();
+    for (SymbolTable::const_iterator::Keys it = symbolTable().begin().keys(); it != end; ++it)
+        propertyNames.add(Identifier(it->get()));
+
+    JSObject::getPropertyNames(exec, propertyNames);
+}
+
+void JSVariableObject::mark()
+{
+    JSObject::mark();
+
+    size_t size = d->localStorage.size();
+    for (size_t i = 0; i < size; ++i) {
+        JSValue* value = d->localStorage[i].value;
+        if (!value->marked())
+            value->mark();
+    }
+}
+
+} // namespace KJS